Adding description to README.md

git-svn-id: https://svn.secondstory.net/dev/trunk/AllTheScreens@970 ee1b9629-3b4e-0410-82d0-bbc047db75d7
Updated documentation and added framerate to crackle.
Merge branch 'master' of github.com:secondstory/all-the-screens

Conflicts:
	README.md